JP4383189B2 - Peer-to-peer communication network system in which mobile terminal device participates and network participation method of mobile terminal device - Google Patents

Description

  The present invention relates to a peer-to-peer communication network system, and in particular, a peer-to-peer communication network system capable of participating in a mobile terminal device such as a mobile phone or a digital camera having a low function such as a CPU or memory, and a network participation method for the mobile terminal device The present invention also relates to a mobile terminal device that participates in a peer-to-peer communication network system.

  In a server / client network, the load on the server is high, and access to the server may become a bottleneck. For this reason, a peer-to-peer communication network system described in Patent Document 1 below has been developed and is beginning to spread.

  In this peer-to-peer communication network, each client (peer) constituting the network shares the storage medium of each client, and one peer can directly access a file such as image data stored in another peer. You can browse the files you send and receive without uploading them to the server.

Japanese Patent Laid-Open No. 2002-57701

  A conventional peer-to-peer communication network is based on the premise that a personal computer connected to a wide area network such as the Internet is a member. However, in recent years, the evolution of small devices has been remarkable, and mobile terminal devices such as mobile phones and PDAs. Is widely spread.

  Since these mobile terminal devices are smaller in CPU processing capacity and memory capacity than a personal computer and have limited communication ports, the mobile terminal device is a member of a peer-to-peer communication network system. If it is made to participate in the same way, there is a high possibility that the network traffic will be loaded and become a network barrier.

  However, there is a high demand for users to participate in a peer-to-peer communication network system with mobile terminal devices that users usually carry, such as mobile phones.

  An object of the present invention is to provide a peer-to-peer communication network system and a mobile terminal device network participation method that allow a mobile terminal device to participate easily without becoming a network barrier.

Peer-to-peer communication network system of the present invention, and a center server and a personal computer connected to the peer-to-peer communication network, in a peer-to-peer communication network system which the mobile terminal device to participate in the peer-to-peer communications network, the user of the personal computer users When the mobile terminal device is joined to the peer-to-peer communication network, the mobile terminal device registers the personal computer as a relay peer in the center server, and a peer-to-peer communication application is placed from the center server. The personal computer that received the notification of the address of the location notified the address to the mobile terminal device by e-mail and accessed the address The mobile terminal device downloads and executes the peer-to-peer communication application to acquire location information of the personal computer from the center server, and the mobile terminal device transfers the personal computer to the relay peer based on the location information. And participating in the peer-to-peer communication network .

The personal computer that has become the relay peer of the peer-to-peer communication network system of the present invention acquires the file for file exchange in the mobile terminal device in itself and is connected to the other peer connected to the peer-to-peer communication network. When a file in the mobile terminal device is requested, the personal computer exchanges the file with the other peer in place of the mobile terminal device .

The personal computer that has become the relay peer of the peer-to-peer communication network system of the present invention requests the mobile terminal device for a file for file exchange in the mobile terminal device, acquires the file, and When it is registered in the center server that the file is a file exchange file of the mobile terminal device, and the other peer requests the file in the mobile terminal device, the other peer inquires the center server. The relay peer of the mobile terminal device knows that the personal computer is the personal computer, and the other peer requests the personal computer for the file in the mobile terminal device, and the personal computer has its own storage medium. Mobile type stored in And transmits the file end device to the other peers.

  With this configuration, the mobile terminal device can easily know the relay peer that is the data relay destination.

According to the mobile terminal device network joining method of the present invention , a personal computer is connected to a peer-to-peer communication network to which a center server is connected, and a user of the personal computer is a user. A method of joining a communication network, wherein the mobile terminal device registers the personal computer as a relay peer in the center server and receives a notification of an address of a place where an application for peer-to-peer communication is placed from the center server The personal computer notifies the mobile terminal device of the address by e-mail, and the mobile terminal device that has accessed the address downloads and executes the peer-to-peer communication application. It obtains the location information of the personal computer from said center server, the mobile terminal device is characterized by participating in the peer-to-peer communication network the personal computer on the basis of the location information as the relay peer.

The personal computer which has become the relay peer in the network participation method of the mobile terminal device of the present invention acquires the file exchange file in the mobile terminal device in itself and is connected to the peer-to-peer communication network. When a file in the mobile terminal device is requested from another peer, the personal computer exchanges the file with the other peer in place of the mobile terminal device .

The personal computer that has become the relay peer in the network participation method of the mobile terminal device of the present invention requests the mobile terminal device for a file for file exchange in the mobile terminal device and acquires the file. When the other peer requests the file in the mobile terminal device, the other peer requests the file in the mobile terminal device to register with the center server that the file is a file exchange file of the mobile terminal device. An inquiry is made to the center server to find out that the relay peer of the mobile terminal device is the personal computer, the other peer requests the file in the mobile terminal device from the personal computer, and the personal computer The mobile stored in its own storage media And transmits the file type terminal apparatus to the other peers.

  With this configuration, the mobile terminal device can easily know the relay peer that is the data relay destination.

  According to the present invention, even a mobile terminal device can exchange files without becoming a network bottleneck.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a configuration diagram of a peer-to-peer communication network system according to an embodiment of the present invention. An infinite number of computers are connected to a wide area network such as the Internet, and among these, a computer that is installed and started with specific application software for network construction constructs a peer-to-peer communication network system according to the present embodiment. In the illustrated example, this network system includes peer 1, peer 2, peer 3, center server 4, and network 5 connecting them, and exchanges image data between the peers.

  Furthermore, a mobile phone 6 (hereinafter also referred to as peer A) and a mobile phone 7 (hereinafter also referred to as peer B) can be connected to the network 5. For example, a computer installed at home by the user of the mobile phone 6 is the peer 3, and a computer installed by the user of the mobile phone 7 at the office is the peer 2.

  FIG. 2 is a diagram showing the mobile phone 7 (peer B). The mobile phone 7 is provided with a display unit 15 such as a color liquid crystal screen in addition to the switches 11 such as button operation switches, the antenna 12, the speaker 13, and the microphone 14, and is a mobile phone with a camera. An image 16 captured by the peer A is acquired via the peer-to-peer communication network system and displayed on the display unit 15.

  FIG. 3 is a block configuration diagram of the mobile phone 7. In FIG. 3, functional blocks for normal voice calls are not shown, and only the portions necessary for image display are shown. The CPU 21, the memory 22, the nonvolatile memory 23, the clock 24, and the operation switch 11 are shown. Are connected, a control unit 26 to which the display unit 15 is connected, a transmission / reception buffer 28 connected to a transmission / reception circuit 27 to which the antenna 12 is connected, and a bus 29 for interconnecting them. . A battery 30 is mounted on the mobile phone 7, and power is supplied from the battery 30 to each block such as the CPU 21.

  FIG. 4 is a sequence diagram illustrating an example of a communication procedure in the peer-to-peer communication network system. In this sequence diagram, the peer B requests a captured image by the peer A, which is a camera-equipped mobile phone, and the process until the captured image is displayed on the display unit 15 as shown in FIG.

  First, each peer constituting this network system registers with the center server 4. In addition, peer A (mobile phone 6) and peer B (mobile phone 7) register with the center server 4 that their relay hosts (relay peers) are peer 3 and peer 2, respectively, when entering the network. To do.

  When the peer 3 serving as the relay host of the peer A creates an application in which peer information such as its peer name is registered and uploads it to the center server 4, the center server 4 sets the URL in which the image communication application is placed to the peer 3 Notify against. Upon receiving this notification, the peer 3 notifies the peer A of the URL where the application for image communication is placed by e-mail.

  The peer A accesses the notified URL, requests the image communication application from the center server 4, and downloads it. Then, this image communication application is executed to send key information of its own relay host to the center server 4 to inquire and acquire location information such as the IP address of the relay host.

  Next, when the peer A makes a relay request to the peer 3 that is its relay host based on the location information, the peer 3 sends the peer A to the peer 3 among the image data in the peer A. Request unsent new image data. The peer A that has received this request transmits a new image (four image data in the illustrated example) to the peer 3, and the peer 3 that has received this image data transmits these image data to the center server 4. Is registered as an image of peer A.

  When exchanging image data in a peer-to-peer communication network system, each peer is divided into several groups, for example, a group that exchanges image data for an “entrance ceremony” and a group that exchanges image data for an athletic meet. Will join the desired group. To join a group and access the image data of the group, a group key as an access key is input. That is, a group is selected.

  Now, when a user of peer B selects a group and a request for image data of peer A included in this group occurs, peer B transmits a request to peer 2 which is its relay host. The peer 2 knows that the relay host of the peer A is the peer 3 by making an inquiry to the center server 4, and requests the image data of the peer A from the peer 3.

  Upon receiving this request, the peer 3 transmits the image data of the peer A stored in its own storage medium to the peer 2. Peer B confirms the response to peer 2 at a predetermined period, for example, at an interval of 1 second. When peer 2 finishes receiving the image data of peer A, the image data is transferred from peer 2 to peer B. . Thereby, as shown in FIG. 2, the image of the peer A can be displayed on the display unit 15 of the peer B.

  As described above, according to the present embodiment, even a mobile terminal device exchanges files using a large-sized and high-functional computer such as a personal computer as a relay host, so that peer-to-peer communication can be performed without becoming a network barrier. It can be carried out.

  In the above-described embodiment, a mobile phone has been described as an example of the mobile terminal device. However, the same applies to other types of mobile terminal devices such as a PDA. Even a digital camera that has made remarkable progress in recent years can exchange files by peer-to-peer communication via its own relay host if it has a communication function, such as a function capable of connecting to a network via a wireless LAN. Since the digital camera is a mobile terminal device that captures an image, a large-capacity storage medium dedicated to the image is mounted, and if the digital camera can be connected to an image exchange network, the utility value is increased.

  In the above-described embodiment, the description has been made on the assumption that the peer B knows the group key in advance. However, if the peer B does not know the group key, the user of the peer A receives the group key by e-mail or the like. I will tell you. However, since sending and receiving the group key by e-mail takes time to input, for example, when the peer A and the peer B placed at a short distance are both set in the IrDA mode, the group key is sent and received by IrDA. Convenient.

  According to the present invention, even a mobile terminal device such as a mobile phone can participate in a peer-to-peer communication network without becoming a network barrier, and therefore it is possible to easily exchange large files such as image data.

1 is a configuration diagram of a peer-to-peer communication network according to an embodiment of the present invention. FIG. It is a figure which shows the mobile telephone which is an example of a mobile terminal device. FIG. 3 is a functional block diagram of the mobile phone shown in FIG. 2. It is a sequence diagram which shows an example of the procedure of the file exchange in the peer to peer communication network shown in FIG.

Explanation of symbols

1, 2, 3 Peer 4 Center server 5 Network 6 Mobile phone (Peer A)
7 Mobile phone (Peer B)

Claims (6)

In a peer-to-peer communication network system in which a center server and a personal computer are connected to a peer-to-peer communication network and a mobile terminal device participates in the peer-to-peer communication network, the mobile terminal device in which a user of the personal computer is a user When joining the peer-to-peer communication network, the mobile terminal device registers the personal computer as a relay peer in the center server, and receives notification of the address of the location where the peer-to-peer communication application is placed from the center server The personal computer notifies the mobile terminal device of the address by e-mail, and the mobile terminal device that has accessed the address transmits the address for peer-to-peer communication. Get Download and execute the location information of the personal computer publication from the center server, the mobile terminal device is a peer-to-peer communications to participate in the peer-to-peer communication network the personal computer on the basis of the location information as the relay peer Network system. 2. The peer-to-peer communication network system according to claim 1, wherein the personal computer that has become the relay peer acquires a file for file exchange in the mobile terminal device and connects to the peer-to-peer communication network. Peer-to- peer communication network system in which the personal computer exchanges the file with the other peer in place of the mobile terminal when a file in the mobile terminal is requested from another peer . 3. The peer-to-peer communication network system according to claim 2, wherein the personal computer that has become the relay peer requests the mobile terminal device for a file for file exchange in the mobile terminal device and acquires the file. When the other peer requests the file in the mobile terminal device, the other peer requests the file in the mobile terminal device to register with the center server that the file is a file exchange file of the mobile terminal device. An inquiry is made to the center server to find out that the relay peer of the mobile terminal device is the personal computer, the other peer requests the file in the mobile terminal device from the personal computer, and the personal computer Stored in your own storage media Peer-to-peer communication network system that transmits the file of the mobile terminal device to the other peers. A mobile terminal device in which a personal computer is connected to a peer-to-peer communication network to which a center server is connected, and a user of the personal computer is a user. The terminal device registers the personal computer as a relay peer in the center server, and receives the notification of the address of the location where the peer-to-peer communication application is placed from the center server, the personal computer notifies the mobile terminal device by e-mail The mobile terminal device that has notified the address and has accessed the address downloads and executes the peer-to-peer communication application to obtain the location information of the personal computer. Obtained from Saba, the mobile terminal device network participation method of a mobile terminal participating in the peer-to-peer communication network the personal computer on the basis of the location information as the relay peer.   5. The network participation method for a mobile terminal device according to claim 4, wherein the personal computer that has become the relay peer acquires a file exchange file in the mobile terminal device in itself, and the peer-to-peer When a file in the mobile terminal device is requested from another peer connected to the communication network, the personal computer exchanges the file with the other peer on behalf of the mobile terminal device. A network participation method for a mobile terminal device.   6. The network participation method for a mobile terminal device according to claim 5, wherein the personal computer that is the relay peer requests the mobile terminal device for a file exchange file in the mobile terminal device. Acquiring the file and registering with the center server that the file is a file exchange file of the mobile terminal device, and when the other peer requests the file in the mobile terminal device, The other peer makes an inquiry to the center server to find out that the relay peer of the mobile terminal device is the personal computer, and the other peer requests the personal computer for the file in the mobile terminal device. The personal computer must be stored in its own storage medium. Network participation method of a mobile terminal apparatus that transmits the file of the mobile terminal device being in the other peers.

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